Improvement in bobbins



UNITED STATES FATENT OFFICE.

CHARLES H. REYNOLDS, OF NORTH KINGSTON, RHODE ISLAND.

IMPROVEMENT IN BOBBINS.

Specification forming part of Letters Patent No. 4 1,016, dated August30, 1864.

To aZZ whom it may concern.:

Be it known that I, CHARLES H. REYNOLDS, of North Kingston, in the Stateof Rhode Island, have invented a new and useful Improvement in. Bobbins;and I do hereby declare that the following is a full, clear, and eXactdescription thereof, which will enable those skilled in the art to makeand use the same, referencebeing had to the accompanying drawings,forming part of this specification, in which- Figure 1 represents abobbin fitted after one example of my invention to its spindle. Fig.

2 is a view of the same bobbin when oi the spindle, and Fig. 3 showsanother mode ot carrying out my invention.

Similar letters of reference indicate corresponding parts.

ln splnning wool and other yarns and threads on spools and bobbins it isnecessary that they be held stationary upon their spindles, so as not torevolve during the process of spinning, and it is also necessary thatthey b e held upon the spindle in such a manner as to be easily removedwhen the bobbin is full without the use of tools or of much force. It isalso requisite that the bobbin be easily xed upon and removed from thespindle of the shuttle, and that it be held in one position thereinduring the process of weaving. The devices hitherto used for thispurpose have been conned to the use of string or cloth packing woundupon the heel of the spindie near its shoulder, over which the bobbinwas to be forced, so as to fit tightly. This method of holding thebobbin in one position on the spindle has always proved to be uncertainas well as laborious and troublesome.

My invention consists in turning a cavity )or chamber, c, in the base ofthe bobbin of \either of the shapes shown in Figs. l and 3, or of anyother equivalent shape, and driving therein a section, d, of an elastictube made ot' "rubber or other :suitable material. I usually take apiece of rubber tubing of the proper diameter and bore and cut it intopieces of the proper length, about as shown in the drawings, and insertone of the pieces in the chamber' a of each bobbin. The elastic sides ofthe ring will conform to the shape ot' the chamber, and in Figs. l and2, Where the base of the conical chamber is at its deepest part, thosesides will form a dovetailjoint with the sides of the cavity, and thuspresent a great resistance to the pull of the bobbin when it is jerkedoff the spindle of the jack or of the shuttle. So, likewise, the baseofthe chamber prevents the elastic ring from being forced out of itsseat and carried farther up into the bore of the bobbin, when it isforced down upon the spindle.

Fig. 3 shows another shape ofthe chamber, its sides being curved orcylindrical, so as to cause the outer and inner edges ofthe elastic ringto contract, thus making the bore ot' the ring to be of an oval shape.

In Fig. 1 the ring takes the shape of the y conical chamber and itsedges are contracted the most at the narrow part of the. chamber at thefoot ofthe bobbin.

I do not limit myself to any particular shape of' chamber, as any shapewill answer that will hold the packing securely when the workman isshifting the bobbins, and will also sufcieutly compress its sidesl tomake it worksuccessfully when the bobbin is in use in thel spindle.

This invention is useful not only in bobbins but also in the spools ofdrawing frames, and in any other kinds of spinning machinery wherespools and bobbins are to be heldin positions more or less secureagainst rotation or slipping.

I claim as new and desire to secure by Letters Patent- 1. The use of anelastic packing, made part of the bobbin or spool, or secured thereto,so as to bear upon the surface of the spindle and hold the bobbin orspool thel eto, substantially as described.

2. Making the packing or friction-surface of the bobbins or spools,whereby to hold them to their spindles, of a ring of elasric materialsecured within the foot of' the bobbin or spool, substantially asdescribed.

C. H. REYNOLDS.

Witnesses:

M. M. LIVINGSTON, WM. F. MCNAMARA,

